RCfilteri
RCfilteri is a term that can refer to a type of electronic filter constructed using resistors and capacitors. These are passive filters, meaning they do not require an external power source to operate. RC filters are fundamental building blocks in electronics and are used for a variety of signal processing tasks. The most common types are the low-pass filter, the high-pass filter, and the band-pass filter, though band-stop filters can also be constructed.
A simple RC low-pass filter allows low-frequency signals to pass through while attenuating high-frequency signals. Conversely,
RC filters are widely employed in audio circuits for tone control and equalization, in power supply circuits